Flush-valve.



'FJP. ROB.

PLUSH VALVE.

APPLICATION FILED APR. 26, 1912.

1,060,288. Patented Apr. 29, 19 13.

FERDINAND F. ROB, OF BALTIMORE, MARYLAND.

FLUSH-VALVE.

menses.

Specification of Letters Patent.

lt atented Apr. 21%,Qitl t3.

Application filed April 28, 1912. Serial No. 893,503.

the invention is to simplify construction and increase the utility ofsuch flush valves by providing a valve of this character which iscomposed of a few simple parts easily assenibled. and not liable todisplacement or breakage under ordinary use.

\Vith this object in view the invention consists in the improvedconstruction, ar-

rangement and combination of parts of a valve of the characterspecified, which will be hereinafter first fully described and afterwardspecifically claimed.

In order that the construction and operation of my invention may bereadily comprehended I will now proceed to specifically describe it,having reference to the accoin; panying drawing-which illustrates anapproved embodiment of the invention. in which drawing preferably asubstantially which communication is Figure 1 represents a verticalsectional view of a valve of the character specified connected up to awater supply pipe and a discharge pipe, said pipes being shown inelevation and broken away; Fig. 2 represents a view in elevation of thesame parts looking at the left hand side as shown in Fig. 1, parts beingbroken away and parts shown in section; Fig. 3 represents a view of theupper part of a slightly modified construction partly in elevation, withparts broken away and parts in section onthe same' plane as in Fig. 1.

Like reference characters mark the same parts wherever they occur in anyof the figures of the drawing.

'Referring specifically to the drawing 5 indicates the casing of myi'mpr'ovedvalve,

cylindrical casting whichis provided with an internally threaded nozzle6 on one side to receive a water supply pipe 7, a similar nozzle 8 atthebottom to receive a discharge pipe 9 from had with the closet- Ron,ed upper end l l l bowl, (not shown) and an interiorly threadl toreceive a removable cap 11 provided on its interior with a central depending cylindrical guide 12 to receive the stem. 13 of a valve let thespecific construction of which will be later described.

lVithin the casing is a hollow elbow 15 comprising a horizontal arm 18communicating tglirectly with the supply pipe, and a vertical arm 17which has its upper and open and terms a valve seat.

The valve stem 13 is plain where it enters the guide 12 and is enlargedand threaded at 18' to fOl'Ill'tl stop 18 upon which threaded portion isthreaded a disk 19 in a cup shaped packing 20 which slidably tits in a5., said packing cup resting on a metallic disk threaded on the stem andforming the valve proper l4: beneath which, on the stem, is a packingdist E22 which normally rests upon the top of the valve seat l7 and isheld up on the-stem. against the valve 14, by an inverted cupshapedsupplementary valve 23 which enters within said valve seat 17.

A port 24 leads from the horizontal arm 16 of the elbow 15, through thewall of the casing 5, to the chamber 21 and from said chamber projects ahorizontal threaded nozzle 25 which receives a sleeve 26 into which isthreaded at its outer end a second sleeve 27. which bores are aliiicdwith each other, forming a guide for a stem 28 of a valve 29, said steinbeing reduced in diameter at 30 in an enlarged inner end of the bore.which forms a chamber 31. The valve head, when the valve is closed,which itis normally by a spring 32,.seats itself at the inner end of thesleeve 26 and cuts off communication between the chambers 31 and 21.

The valve 29 may be opened by manual pressure upon a knob 3301i theouter end of the stem 28 against the closing force of the spring 82'which is coiled about the stem chamber 21 lIL'Q-Pd upper-ei-idet'tl ecasing between ashoulder in the sleeve 27 and the inner end or theknob.-

A port 34 in the well of the casing 5 leads from the chamber 31 to thelower portion of the casing 5 which is in communication with thedischarge pipe 9.

I The upper end of the port 24 may be wholly or partially closed byneedle valve 35 (Fig. 2), whereby its discharging capacity mayberegulated.

Each of the sleeves has bore- In the modification shown in Fig, thecasing 5, threaded end 10, and cap 11 are the same as in theconstructions shown in Figs. 1 and 2 and. previously described. butinstead of the horizontal nozzle 25 there is a vertical nozzle :25 toreceive the sleeve 26,

portcommunicating between the chamher 3t and the valve casing and a port34; leading from said chamber. to the lower end of the casing, the wholeobject of the modification being to bring knob into a position sometimesto be preferred and to have it and the release valve stem move.vertically instead of horizontally.

The operation of the invention may be described as follows: Assuming theparts to be in position illustrated in Fig. l and the chamber 21 filledwith water from the supply pipe 7 through the port :24, the pressureofthe water in said chamber will tend to keep the valves lat and closed,the latter also having the pressure of the spring 32, thus cuttlng otiall connection between the supply pipe 7 and the discharge pipe 9.

By pressing inwardly on the knob the valve "29 is opened, permitting thewater to flow from the chamber 21, around valve 29, through chamber 31.and port 3t to the ca ing and the discharge pipe, \vl 'ch will releasethe pressure in chamber 21, so that the pressure of the water from thesupply pipe 7 through the elbow- 15 will raise valve 1-lt off its seatand open a passage for the supply of water out of the elbow, below theraised valve 14 and out at the lower end of the casing and discl'iargepipe 7, thus flushing the bowl. The spring 32 will have closed the valve25), and, the water continuing to flow through port 24, the chamber 21will be again filled, and the valve 14 closed by said pressure, when theflushing will cease, the length of time during which the flushing willbe continued depending upon the regulation of the discharge through port24 by means of the needle valve From the foregoing it will be seen that.l have provided a strong, simple, and economical flush valve thecharacter described, and while I have specifically described theconstruction, location, and operation of the various parts composing thesame, I desire it to be understood that slight changes and variationsmay be made thereoeonss in, without departing from the spirit and scopeof the invention as defined in the appended claim. I

Having thus fully described my invention, what I claim as new and desireto secure by Letters Patent of the United States, is-- v A flush valveof the class described, comprising a casing, having an inlet and anoutlet, said inlet being in the form of an elbow disposed within thecasing and consisting of a horizontal and vertical arm, the horizontalarm being extended to provide a threaded coupling adapted to connectwith a supply pipe; a threaded cap on said casing, said cap having aguide sleeve depending therefrom, a valve stem slidable within the guidesleeve, said valve stem having an enlarged threaded portion producing ashoulder adapted to contact with the guide sleeve and constitute a stop,a piston valve disposed upon the threaded portion of the valve stem andconsisting of a dish, a cup shaped packing superposed on said disk, theside of the packing being flush with the edge ot the disk and contactingwith the interior of the casing, a second disk threaded upon the valvestem, said second disk being less in diameter than the first disk andarranged within the cup shaped packing, the edge of said second diskcontacting with the inner side of said packin an inverted supplementalcup-shaped valve threaded upon the valve stem and normally disposedwithin the vertical arm, and packing disposed between the supplementalvalve and the first n'ientioned disk, said piston valve eot'rperatiugwith the casing to form in the upper end thereof a main water chamber, aby-pass through said casing from the horizontal arm of said elbow to themain water chamber, a screw threaded needle valve adapted to control theflow of water through said lay-pass, a passageway connecting the mainwater chamber with the outlet, and a manually-operated spring pressedvalve con trolling said passageway.

In testimony whereof I my signature in presence of two witnesses.

FERDINAND F. ROB. Witnesses l1. WALTON BREWINGTON, Many M. MAGRAW.

